Denon UD-M31 Service Manual page 9

SEMICONDUCTOR
IC's
µPD784216AGC-8EU(IC201)
µPD784216AGC-8EU Terminal Function
Pin
Port
No.
1 P120/RTP0 ENC A
2 P121/RTP1 ENC B
3 P122/RTP2 V.MUTE
4 P123/RTP3 POWER
5 P124/RTP4 /R.MUTE
6 P125/RTP5 NC
7 P126/RTP6 SEL.EEPROM
8 P127/RTP7 FLCE
9 VDD VDD
10 X2 X2
11 X1 X1
12 VSS VSS
13 XT2 XT2
14 XT1 XT1
15 /RESET /RESET
16 P00/INTP0 REMOCON
17 P01/INTP1 50/60
18 P02/INTP2/NMI /DB RXD
19 P03/INTP3 PROTECT
20 P04/INTP4 SEL.EEPROM
21 P05/INTP5 WRQ
22 P06/INTP6 /INT
23 AVDD AVDD
24 AVref0 Avref0
25 P10/ANI0 KEY1
26 P11/ANI1 KEY2
27 P12/ANI2 KEY3
28 P13/ANI3 KEY4
29 P14/ANI4 NC
30 P15/ANI5 DRF
31 P16/ANI6 FSEQ
32 P17/ANI7 DARXD
75
76
100
1
Symbol I/O
I Rotary encoder INPUT A
I Rotary encoder INPUT B
O Volume mute output, mute;High
O Amp circuit power ON/OFF output, ON:High
O Speaker Relay ON/OFF output, ON:High
O Not used :NC
O EEPROM chip enable output
O Chip select output to FL tube controller
- Positive power
- X'tal connection for main clock oscillation
I X'tal connection for main clock oscillation
- GND potential
- x'tal connection for main sub-clock oscillation,
not used : :NC
I x'tal connection for main sub-clock oscillation,
not used :Connect to VSS orVCC
I Micro-computer reset input
I Remote-control receive data input
I 50/60Hz AC input
I DENON BUS Data input (interrupt input)
I Speaker Terminal DC voltage detect signal input
O EEPROM chip enable output
I SUB CODE Q STAND BY
I NC, connect to grand
- A/D converter analog power
- A/D converter reference voltage input
I Unit operation button input1
I Unit operation button input2
I Not used :Connect to GND
I Not used :Connect to GND
I Not used :Connect to GND
I REFLECTION OF DISC SIG. Input
I EFM SYNC SIG. INPUT
I DATA BUS(for VOL,PLL,RDS IC, EEPROM)
Data in
51
50
26
25
Function
9
UD-M31
outputs of
RECIEVER or CD
standby&Defoult
RECIEVER -
RECIEVER -
RECIEVER H
RECIEVER L
RECIEVER L
OTHER L
RECIEVER L
OTHER L
OTHER -
OTHER -
OTHER -
OTHER -
OTHER -
RECIEVER -
RECIEVER -
RECIEVER -
RECIEVER -
RECIEVER L
CD L
OTHER -
OTHER -
OTHER -
RECIEVER -
RECIEVER -
OTHER -
OTHER -
OTHER -
CD -
CD -
-
9